1: (0 3 17)

(0)(1 20 4)(2 15 14)(3 19 17 8 6)(5 18 13)(7 11 9)(10 16 12)

2: (1 20 4)

(0)(1)(2 15 14)(3 19 17 8 6)(4)(5 18 13)(7 11 9)(10 16 12)(20)

3: (3 19 6)

(0)(1)(2 15 14)(3)(4)(5 18 13)(6 17 8)(7 11 9)(10 16 12)(19)(20)

4: (5 18 13)

(0)(1)(2 15 14)(3)(4)(5)(6 17 8)(7 11 9)(10 16 12)(13)(18)(19)(20)